DE69329975D1 - MAGNETORHEOLOGICAL MATERIALS USING SURFACE-MODIFIED PARTICLES - Google Patents

MAGNETORHEOLOGICAL MATERIALS USING SURFACE-MODIFIED PARTICLES

Info

Publication number
DE69329975D1
DE69329975D1 DE69329975T DE69329975T DE69329975D1 DE 69329975 D1 DE69329975 D1 DE 69329975D1 DE 69329975 T DE69329975 T DE 69329975T DE 69329975 T DE69329975 T DE 69329975T DE 69329975 D1 DE69329975 D1 DE 69329975D1
Authority
DE
Germany
Prior art keywords
modified particles
magnetorheological materials
magnetorheological
materials
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69329975T
Other languages
German (de)
Other versions
DE69329975T2 (en
Inventor
D Weiss
David Carlson
A Nixon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lord Corp
Original Assignee
Lord Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25515862&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69329975(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lord Corp filed Critical Lord Corp
Publication of DE69329975D1 publication Critical patent/DE69329975D1/en
Application granted granted Critical
Publication of DE69329975T2 publication Critical patent/DE69329975T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Lubricants (AREA)
  • Soft Magnetic Materials (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
DE69329975T 1992-10-30 1993-10-27 MAGNETORHEOLOGICAL MATERIALS USING SURFACE-MODIFIED PARTICLES Expired - Fee Related DE69329975T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96968792A 1992-10-30 1992-10-30
PCT/US1993/010285 WO1994010694A1 (en) 1992-10-30 1993-10-27 Magnetorheological materials utilizing surface-modified particles

Publications (2)

Publication Number Publication Date
DE69329975D1 true DE69329975D1 (en) 2001-04-05
DE69329975T2 DE69329975T2 (en) 2001-07-19

Family

ID=25515862

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69329975T Expired - Fee Related DE69329975T2 (en) 1992-10-30 1993-10-27 MAGNETORHEOLOGICAL MATERIALS USING SURFACE-MODIFIED PARTICLES

Country Status (7)

Country Link
EP (1) EP0672294B1 (en)
JP (1) JP3226925B2 (en)
CN (1) CN1088021A (en)
CA (1) CA2148001A1 (en)
DE (1) DE69329975T2 (en)
RU (1) RU2115967C1 (en)
WO (1) WO1994010694A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5578238A (en) * 1992-10-30 1996-11-26 Lord Corporation Magnetorheological materials utilizing surface-modified particles
US5670077A (en) * 1995-10-18 1997-09-23 Lord Corporation Aqueous magnetorheological materials
US5900184A (en) * 1995-10-18 1999-05-04 Lord Corporation Method and magnetorheological fluid formulations for increasing the output of a magnetorheological fluid device
US5667715A (en) * 1996-04-08 1997-09-16 General Motors Corporation Magnetorheological fluids
US5705085A (en) * 1996-06-13 1998-01-06 Lord Corporation Organomolybdenum-containing magnetorheological fluid
US5683615A (en) * 1996-06-13 1997-11-04 Lord Corporation Magnetorheological fluid
US6095486A (en) * 1997-03-05 2000-08-01 Lord Corporation Two-way magnetorheological fluid valve assembly and devices utilizing same
US5947238A (en) * 1997-03-05 1999-09-07 Lord Corporation Passive magnetorheological fluid device with excursion dependent characteristic
US5993358A (en) * 1997-03-05 1999-11-30 Lord Corporation Controllable platform suspension system for treadmill decks and the like and devices therefor
DE10153547A1 (en) * 2001-10-30 2003-05-22 Degussa Dispersion containing pyrogenically produced abrasive particles with superparamagnetic domains
US7063802B2 (en) * 2003-03-28 2006-06-20 Ferrotec Corporation Composition and method of making an element-modified ferrofluid
DE102004041650B4 (en) 2004-08-27 2006-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Magnetorheological materials with high switching factor and their use
DE102004041651B4 (en) 2004-08-27 2006-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Magnetorheological materials with magnetic and non-magnetic inorganic additives and their use
DE102004041649B4 (en) * 2004-08-27 2006-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Magnetorheological elastomers and their use
US8486292B2 (en) 2006-09-22 2013-07-16 Basf Se Magnetorheological formulation
JP5168446B2 (en) * 2007-01-26 2013-03-21 日産自動車株式会社 Lubricating oil composition
WO2010141336A1 (en) * 2009-06-01 2010-12-09 Lord Corporation High durability magnetorheological fluids
DE102010026782A1 (en) 2010-07-09 2012-01-12 Eckart Gmbh Platelet-shaped iron pigments, magnetorheological fluid and device
US20150068219A1 (en) 2013-09-11 2015-03-12 Astronautics Corporation Of America High Porosity Particulate Beds Structurally Stabilized by Epoxy
CN105131904B (en) * 2015-08-07 2017-11-28 辽宁科技大学 A kind of magnetic abrasive and preparation method thereof
CN107120540B (en) * 2016-12-02 2019-12-27 深圳市长运通半导体技术有限公司 Heat dissipation compound oil and LED liquid lamp
CN107464684B (en) * 2017-08-30 2020-04-21 包头天和磁材科技股份有限公司 Method for treating sintered magnet
CN108003966A (en) * 2017-11-28 2018-05-08 青岛海澄知识产权事务有限公司 A kind of molybdenum disulfide and titanium dioxide modification ferriferrous oxide nano composite material
CN111269740A (en) * 2020-02-13 2020-06-12 清华大学 Magnetorheological fluid composition and preparation method thereof
CN112126493B (en) * 2020-09-28 2022-09-09 国网河南省电力公司周口供电公司 Optical fiber ointment and optical fiber composite carbon fiber lead
CN112552987A (en) * 2021-01-19 2021-03-26 江西赛诺得新材料有限公司 Preparation method of ultra-stable silicone oil-based magnetorheological fluid
CN114921175A (en) * 2022-05-19 2022-08-19 湖北大学 Preparation method of magnetic response composite gel surface for controlling high-performance liquid drops and bubbles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661596A (en) * 1950-01-28 1953-12-08 Wefco Inc Field controlled hydraulic device
US3764540A (en) * 1971-05-28 1973-10-09 Us Interior Magnetofluids and their manufacture
US3917538A (en) * 1973-01-17 1975-11-04 Ferrofluidics Corp Ferrofluid compositions and process of making same
US4485024A (en) * 1982-04-07 1984-11-27 Nippon Seiko Kabushiki Kaisha Process for producing a ferrofluid, and a composition thereof
JPH0782925B2 (en) * 1989-06-27 1995-09-06 ティーアールダブリュー・インコーポレーテッド Fluid sensitive to magnetic field
US4992190A (en) * 1989-09-22 1991-02-12 Trw Inc. Fluid responsive to a magnetic field
JP2666503B2 (en) * 1990-01-25 1997-10-22 トヨタ自動車株式会社 Magnetic powder fluid

Also Published As

Publication number Publication date
RU2115967C1 (en) 1998-07-20
CN1088021A (en) 1994-06-15
EP0672294A1 (en) 1995-09-20
DE69329975T2 (en) 2001-07-19
EP0672294B1 (en) 2001-02-28
JP3226925B2 (en) 2001-11-12
JPH08503009A (en) 1996-04-02
WO1994010694A1 (en) 1994-05-11
EP0672294A4 (en) 1995-06-14
RU95110047A (en) 1997-01-27
CA2148001A1 (en) 1994-05-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: ZEITLER, VOLPERT, KANDLBINDER, 80539 MUENCHEN

8339 Ceased/non-payment of the annual fee